[noun] seed vessel having hooks or prickles Synonyms:bur
[noun] rough projection left on a workpiece after drilling or cutting
[noun] United States politician who served as Vice President under Jefferson; he mortally wounded his political rival Alexander Hamilton in a duel and fled south (1756-1836) Synonyms:Burr, Aaron Burr
[noun] rotary file for smoothing rough edges left on a workpiece
[noun] small bit used in dentistry or surgery Synonyms:bur